Loose leaf binder



Oct. 6, 1931. M. MEYERSON LOOSE LEAF BINDER Filed Sept. 12. 1929 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII'IIIII ""1 Tncyr s n BY 4% ATTORNEY I latch mechanism with an improvedguide for o Patented Get. 6, 1931 MAX MEY R-son, or NEW'YoRKiWJQ LOOSE LEAF BINDER Application filed sep temb er 12, 1929. Seria1 No.392,024Q

' l lvlyinvention relateszto loose leaf binders of the type in which anumber of leaves or e particularly. stated, my invention contemplates improved means whereby the leaves are clamped in andreleased from posi- -f v V i i Among the objectsof my invention are the following 1'. jToenable theleaves, as they accumulate within the book, to be clamped firmly inposition, and especially wheretheleavesform amass. of substantial thickness.

. '2. To enable the operator to adjust the device instantly for any particular thickness of accumulated leaves, 1

u "3. To provide in connection with a device .of thiskind a clamping device which can be quickly and easily adjusted stepby step, to fit zvarying thicknesses of amass ofleaves.

4. To providea clamping device of the typeabove mentioned, n'which there is a telescopic slide and an improved latch mechanism 1SSOC1Z1iQCl'i3l1bT6W1iSh in order to allow for different thicknesses of the-mass of leaves to be clamped.-

5. To provide said telescopic slide its enabling them to be quickly and accurately fitted together. after they have been taken apart. a V

=6. To improve the locking mechanism of the clamping devices just mentioned and 7. To provide a number of specific im- .provements in loose leaf binders generally.

Reference is made-to the accompanying drawings forming a part of this specification, and in which like referencegcharacters indicate like. parts throughout allzof the figures;

-"Figure 2 is-a substantially centralfragjimentarysection through'thebook, showing it-asclosed. V p g Q [F gure 3 1s a sect1on on the line 33 of the postr9.

Figure 1, looking'in the direction indicated by the arrows.

Figure 4: is a perspective showing one of the posts used in my device, and the telescopic clamping bar. o

Figure 5 is a fragmentary perspective of the post appearinginthe lower portion of Figure 4,-but shows it as turnedaround as compared therewith.

slide associated. therewith andcarrying a Figure 6 is a side elevation of a slide somewhat like the one appearing at the top of Figure 1, but carrying. a slightly different form of clamping bar;

A pair of covers 7 7, are connected together by a back strip 8, soas to form a pair of flexible corners 9.

I The back strip 8 extends theentire length ofthe covers, and is preferably somewhat stiffpin order to facilitate themountingof other parts thereupon. T A Mounted upon the back strip 8 and adjacentthe ends thereof area pair of posts 9, 9, each provided with abent port-ion10fintegral with it and serving as a base; 7 I Each base 10 is provided with holes ll, 11.

'Bivets 12, 12 extend through these holes and also through mating holes in the back strip as may be. understood from Figure 3 so as to hold the posts firmly in position.

As thus mounted, each post 9, 9 extends.

perpendicularly from theplane of the back strip, so that when the book is open and horizontal as shown in Figure 1,- the posts extend vertically from the ends of the back strip, and thus parallel vwith each other.

Each post 9 is provided with a spring latch 13, which is simply a leaf spring, secured at its lower end by a rivet l4 and carrying adj acent its upper end a bolt 15, which extends loosely but snu'glythrough a bolt hole 16in I The free end 1 7 of the spring latch extends vslightly above the adjacent end of the post.

This is'to enable the operator to bend the i spring latch slightly away from the post, which he does preferably by lodging his thumb nail against the protruding end17, and forcingthe same to the left according to lUU .to press-amen the leaves QOa, in order tohold" themfirnily against thebackstrip 19' and thus "hold them in position". 3 There beingtwo I i i-i cl'amp'ingbars 19, onefadjacent each end of;

the back strip 8, the leaves aresdclaniped A that they may be bent practically upona 4 line, and because ofthis'fact great flexibility L. is conferred upon the' jbookas whole,- so that it can be readily opened and shut, and the leaves turned over back lz and roam nke the leaves of an ordinaryprinted book. f

i The slid'e'18 here shown is made of'asing-le bit, of sheet metal, having a 7 pair; of o'ppositely disposed edge portions f: 20,} 20, bent toward each other, as indicated in the upper portion ofFigure l4; 'The sli'de -18'i's further 1 provided witha ofears12 1, 2'1, bent over and forming lugs which extend, adjacent the s 20, 20," as may be ends of the edge portio understood from Figure 4;

' Eachg'slide 18 has thus the form of a has sleeveprovided centrallywith ach'annel 22' which is simply the spacebetween the contiguous edge portions 20,120, this flat sleeve being partially'clos'ed'at onebf its'jends by means of thelugs 21, 21'. f Y

The slide 18 can befpla'ced upon th .Pbst,

., I 1-; I ainamovea up or down, 'relativelythereto and as v I The-slide 18;is providedfwith aport'ioni23 integral with it and' flared slightly.; This portionf23 serves as a guideifor engaging the bolt 15 and "moving" it slightly, soas to flex the sprin g lat ch 13 a'little. Thisenablesthe slide "t -qlmove' telescopically down over" the i post Y The j spring latch, in thus "flexing, imply moves partiallyinto the channel 22- j .By this arrangement eaclrp'ostiand the slide associated with it occu a minimum of j space, and togetherjconstitnte' a very comp'act clamping unit. 7

1' 1Eachgslide118 s provided "with "bolt holes 24, ,25,;26,' in this instance three in number. Thes'e bolt holes' are so positioned as to be in alineme'ntjwith the bolt 15 when the slide is shifted in its position upon the post 18.1. ."The

wall ofthe slide 20 with its holes 24, 25v and-26,

and the'Spring latch "13 with its bolt 15,'to-

'gether constitute a latch mechanism common to the postand'the slide, for' detachably holding the slide in different positions" of adjust 5 'Inent upon the'post.

i In order to, shift the operator flexesthe. spring latch 13 as above described,

- so= as'to' withdraw the bolt 15,}and'then the ;-slide-can bemoved freely ortfaken off the post. 'Thefslide canjfbe-shi-fted:into;three definite and I predetermined positions, by so V shlftlng its vposition that the bolt-15 occupies my claims. V

firstbneand thenianotherof the three 'holes we v In Figure 61 show a 'slide clamping bar 27, which has-the form of a solid cylinder instead ofbeing flat-like the clamping bar 19above described, Thelaction 0f the elamping'bar 27 is'substanti'ally the same asthat'ofthe clan1pingbar19'; Its rounded surface renders its pressure upon 7 the leaves 20a somewhat easier as regards the wear and tear of the leaves but the clampingbar 19'can be usedto bend the leaves a V littlemore abruptly.

thestart, and whenever leaves are tobe added or taken out, thejslides 18, are'takenoffthe posts 9, the leaves are put in ortakeniout,

Wheneverleavesare f placedin the book at the slides are replaced upon the posts, and" shifted downwardly until the clamping bars 19 are pressing snugly upon the leaves ,fa s

indicated in Figurel. Wh en the slides are thus in position, they are held securely the bolts 15, or'in otherwords'bythe spring latches. I v

Theaction of understood from the foregoing description. 7

device ay readily Leaves are placed in the book or removed therefrom as required. At any timewhen the leaves are loose the slides are shifted to;

newpos'itions and the-leavesare tightened by pressure of the clamping bars.

" Iffa slile isworn out, broken-or lost," it

readily replaced by a new one; 7

' 7 he slides andpo sts can easily be standard I ized, and arewofv suitable form toafacilitatetheir production in quantity; They are adapted for sale in five and ten cent stores, andWith 'OIIWlthOIIt the book covers they can easily be made business.

therein without departing from my inven- Having thus described my invention,wl1at I claim as new and desire-to secure'by Letters Patent is as follows i thebasis 'of a, mail order ti0n, the scope of which is commensurate with 1. In a loose leaf'binderthe combination,

with book covers and a backstrip for supporting loose leaves; of-apair ofposts mounted adjacent the ends of said'back strip','each post having a spring latch-,and a slide mounted telescopically upon each post'fand pro-j 'vided with portions for engaging said spring position uponthe'post; a a I I 2. Ina loose leaf binder the combination,

therespective ends thereof, a slide mounted sitions', relatively thereto,la clamping arm securedito each slide and movable therewith,

ize latch, in order to hold the slide detachably in p with book covers and aback strip :fOr-isup-Q I porting loose leaves, of a .p air of posts.- mount-1 ed upon said back strip andlocated adjacent 7 upon each post andniovable into different po- 7 105 I do not limit myself totheE precise mechf anisni shown as variatlons maybe made -latch mounted upon said post and provided i said clamping arm, being'thus carried into i holding engagementwith said loose sheets,

' and spring latch mechanism common to said post and said slide for holding said slide in "diflerent'positions of adjustmentrelatively to said post. i

' a 3. Ina loose leaf binderthecombination,

porting loose leaves,of a pair of'posts mountwith book covers and a back strip for'sup edjupon said back strip and located adjacent upon each post and movable relatively thereto, said slide having a. plurality of holes into which said bolt may be thrust in order to hold said slide in a predetermined position relatively to said post, and a clampingarm carried by said slide fandmovable therewith for the purpose of pressing loose leaves against sald-backstrip. v

4.111 a loose leaf binder the combination of a back strip, a post mounted thereupon, a

mova b-l e therewith, for the purpose of presstending through said hole, a slide fitted upon ing loose leaves against said back strip. I

5. In a loose leaf hinder the combination of a back strip, a post mounted thereupon and provided with a hole, a spring latch mounted upon said post and provided with a bolt eX- said post and movable relatively thereto, said slide having a plurality of holes so positioned as to be'brought successively into registry i with said bolt as said slide is moved into different positions of adjustment relatively to Y said post, and a clamping arm carried by said slide, pressing loose leaves against said back strip.

6. Ina loose leaf binder the combination of V book covers and a back strip connecting them actuate said spring latch-by hand, a slide fitted upon saidpost and movable relatively with means for coacting with said spring latch in order to. hold said slide in diiferent positions of adjustment. relatively, to said post, and a clamping armcarried by said slide 'for engaging loose leavesresting upon said book covers and said back strip. 7

; In a loose leaf binder the combination of book covers and aback strip, a post mounted upon said back strip, said post being'provided with a bolt hole extendingthrough it,a spring with a bolt extending through said bolt hole,

3 a slide fitted telescopically upon said post and provided with a row of holes so positioned as to be brought successively into registry with said bolt in order to hold said slide in a plurality of different positions of adjustment upon said post, and a clamping arm carried by said slide and extending therefrom in a direction parallel with said back strip, for the purpose of clamping loose leaves against said back strip.

' I 8., In a loose leaf binder the combination of book covers and aback strip connected therewith, a post mounted upon said back strip, a

slide detachably fitted upon said post and movable relatively thereto into different positions of adjustment, said slide being made of sheet metal and provided with an expanded portion for guiding said slide relatively to the end of said post in order to fit said slide upon said post, means common to said post and said slide for holding said slide in different positions of adjustment upon said post, anda clamping arm carried by said slide for the purpose of clamping loose leaves against said book covers and back strip.

. 9. In a loose leaf binder,'the combination with book covers and a back strip, of posts mounted upon said back strip disposed adjacent the ends of said back strip, a pair of sepa-' rately formed members longitudinally slidable one upon each of said posts, each of said members having a clamping arm projecting therefrom in the direction of the other post thereto, said slide having a portion provided 

